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This work demonstrates the potential of thermally actuated micro-electromechanical resonators to be used as highly sensitive and fast sensors distinguishing between different gases and gas mixtures based on their thermo-physical properties. This approach is especially suitable for detection of hydrogen due to its extremely high thermal conductivity compared to other gases. On the other hand, as observed...
This work presents an effective and low cost method to develop a fully cycled photo electrochemical solar cell by incorporating a copper auxiliary electrode. The continued function of the previously demonstrated photo-electrochemical solar cells consisting of silicon and zinc electrodes, relies on the existence of a zinc source. Therefore, consumption of the zinc anode and transfer of metallic zinc...
This work presents formation of molecular monolayers on silicon surfaces of micromechanical resonant devices and measurement of the mass of the deposited monolayer using such. Thermally actuated single crystalline silicon micromechanical resonators with resonant frequencies in the 20–30 MHz range were used as highly sensitive mass sensors. Monolayers of long chain amine molecules were formed by reacting...
This work presents high-frequency thermally actuated micromechanical resonators and demonstrates potential suitability of thermal actuation for high frequency applications. Thermally actuated single crystal silicon resonators with frequencies up 61 MHz have been successfully fabricated and characterized. It is shown both theoretically and experimentally that as opposed to the general perception, thermal...
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